The desert creates gorgeous structures, and the Eye of the Sahara is no exception. The stunning structure of bare rock peeks out from a sea of sand, forming a beautiful landmark for astronauts overhead. While circular usually means impacts or eruptions, the eye emerged from differential erosion. »10/09/14 12:03pm 10/09/14 12:03pm

It's not so hard to tell Dallas from Milan, but what if you were looking from more than 500 miles above – and in the dark? This quiz from Nautilus takes city light maps snapped via satellite and asks you to sort which city matches which light signature — a surprisingly tricky task. »4/10/14 6:00pm 4/10/14 6:00pm

Is this image a satellite picture or a microscope one? That's the question posed by "Macro or Micro?," an exhibit created by two scientists with completely different focuses. Oh, and we'll tell you the answer below. »11/03/13 1:00pm 11/03/13 1:00pm

What impact do factory farms have on the spaces of land they occupy? For his startling series Feedlots, Mishka Henner stitched together satellite images captured over sprawling factory farming operations. »8/24/13 7:30am 8/24/13 7:30am

Check out that blue alien swarm off the coast of Ireland. It's phytoplankton in bloom, in an image captured last spring and released this week. They swirl in the water, almost like an intelligence... with a purpose. [ESA via NationalGeographic] »8/19/10 6:30am 8/19/10 6:30am